[Calculator with Notepad]:Have you ever been that you had to the of a number during a calculation, couldn't find paper and pen to record it? This finance calculator is comebining with lcd writing board which can solve this problem perfectly.It is designed by a Japanese which pursuing and paperless -friendly.You can take notes while calculating,calling and meeting,which improving your study and work efficiency. [Lightweight and Portable & Extre Protecive bag]:This mini calculator weighs 128g and have a flip cover that can be protecting the keyboard.You can put it in your pocket and bag.It is portable that you can carry it to anywhere and can be removed and used immediately when needed. size:161 x 78 x 14MM Material: PP+silicone colour: black Package Contents: 1 x Office Desk Calcultors 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.